cvedb.io
CVE-2026-32853
HIGH · CVSS 8.1
EPSS exploitation probability: 0%
Published 2026-03-24T18:16:09.253 · Last modified 2026-06-17T10:36:27.050

Summary

LibVNCServer versions 0.9.15 and prior (fixed in commit 009008e) contain a heap out-of-bounds read vulnerability in the UltraZip encoding handler that allows a malicious VNC server to cause information disclosure or application crash. Attackers can exploit improper bounds checking in the HandleUltraZipBPP() function by manipulating subrectangle header counts to read beyond the allocated heap buffer.

Affected products

libvncserver_project — libvncserver

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.